Heat transfer by electromagnetic radiation is one of the common methods of energy transfer between objects. Using the fluctuation-dissipation theorem, we have studied the effect of particle arrangement in the transmission of radiative heat in many-body systems. In order to show the effect of the structure morphology on the collective properties, the radiative heat transfer is studied and the re...

The development and production of high performance equipment necessitate the use of passive cooling technology. In this paper, heat transfer study of convective-radiative straight fin with temperature-dependent thermal conductivity under the influence of magnetic field is carried out using Legendre wavelet collocation method. The numerical solution is used to investigate the effects of magnetic...

This paper outlines the development and design of an infrared radiation heating profile controller. The study includes both the theoretical aspects of the design process as well as giving an overview of the practical facets involved. The controller was subjected to comparative testing with a proportional control model, in order to observe its performance and validate its effectiveness. The conc...

rapid thermal processing (rtp) has become a key technology for semiconductor device manufacturing in a variety of applications, such as thermal oxidation, annealing, and thin-film growth. hence, understanding the radiative properties of silicon and other relevant materials is essential for the analysis of the thermal transport processes. we have analyzed and calculated the spectral, directional...

We have recorded spectra of Titan’s n4 band of CH4 at a higher resolving power (R p 70,000) than prior measurements to better constrain the thermal structure of Titan’s atmosphere from 100 to 600 km altitude. Radiative transfer analyses of the spectra indicate a temperature profile below 300 km that is consistent with past measurements. The high resolving power of our observations provides the ...

It is shown that the radiative electron capture to continuum in energetic collisions with fast heavy projectiles also leads to a binary-encounter type peak in the high-energy electron spectrum. In contrast to the nonradiative target ionization this peak results from a higher-order process, involving near-elastic scattering, and its shape is different from the target Compton profile. Numerical r...

It is shown that taking into account a recoil for radiation scattering in the Lyα line can lead to a noticable acceleration of primordial hydrogen recombination. Thus for ΛCDM model a decrease of ionization degree exceeds 1% for redshifts z in a range 800 – 1050 achieving ≈ 1.3% at z = 900. Corresponding corrections to the cosmic microwave background power spectra can achieve 1.1% for TT spectr...

We present a radiative transfer model which computes the spectral energy distribution of a passive, irradiated circumstellar disk, assuming the grains are in radiative equilibrium. Dependence on the radial density profile, grain temperature estimation, and optical depth profiles on the output SED are discussed. The best fit model for HR 4796A has a minimum and maximum spherical grain size of 2....

In order to calculate the OH primary production rate from satellite measurements, one has to estimate the following quantities: profile of the photodissociation rate of ozone to O(D), tropospheric ozone profile and tropospheric water vapour profile. The estimation of tropospheric OH primary production rate from ERS-2 data is demonstrated. The tropospheric ozone profiles retrieved at the Rutherf...

We study the possibility of designing solar radiation management schemes to achieve a desired meridional radiative forcing (RF) profile using a two-dimensional chemistry-transport-aerosol model. Varying SO2 or H2SO4 injection latitude, altitude, and season, we compute RF response functions for a broad range of possible injection schemes, finding that linear combinations of these injection cases...